Abstract
The excellent dielectric properties of Sulfur hexafluoride (SF6) have long been recognized. The use of compressed SF6 as insulant as well as switching medium in electric power systems is now being extended to higher system voltages. It has been realized however that the presence of conducting contaminating particles alters the insulation characteristics, especially the performance of spacers in SF6 -insulated systems(Nitta et al., 1978; Cookson, 1981; Sudarshan et al., 1986). Considerable experimental investigations on paticle-initiated breakdown characteristics with and without the presence of an insulator under AC, DC, Impulse and their combinations have been carried out by many researchers(Wootton et al., 1979; Yamagiwa et al., 1987; van Heeswijk and Srivastava, 1985). However, there is relatively little information available on the particle-initiated pre-breakdown characteristics, especially with an insulator involved. It is therefore, essential to investigate these charactristices in order to gain some insight into the particle-initiated breakdown(or flashover) processes.
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Wang, H.T., van Heeswijk, R.G. (1991). Particle-Initiated Prebreakdown Characteristics with an Insulator Stressed on 60 Hz Voltage in SF6 . In: Christophorou, L.G., Sauers, I. (eds) Gaseous Dielectrics VI. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-3706-9_39
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DOI: https://doi.org/10.1007/978-1-4615-3706-9_39
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